Maintenance Base Station

ABSTRACT

Provided is a maintenance base station, including a bin body, a rotatable cover, and a revolving shaft, wherein the rotatable cover is in rotatable connection with the bin body via the revolving shaft, the bin body has a debris collection chamber and a opening in communication with the debris collection chamber, the rotatable cover is configured for blocking or revealing the opening; and partial bin wall of the bin body adjacent to the opening is stretched towards the inner side or the outer side of the bin body, hereby forming an avoidance area, and the revolving shaft is arranged in the avoidance area, such that the revolving shaft and the bin wall are spaced apart from each other along the wall thickness direction of the bin wall, so as to accordingly limit the intervention of the revolving shaft in the wall thickness of the bin wall.

CROSS-REFERENCE TO RELATED APPLICATION

The present disclosure claims the priority to the Chinese patent application with the filing No. 2021112776386, filed on Oct. 29, 2021 with the Chinese Patent Office, and entitled “Maintenance Base Station”, the contents of which are incorporated herein by reference in entirety.

TECHNICAL FIELD

The present disclosure pertains to the technical field of refuse processing plant, and particularly relates to maintenance base station.

BACKGROUND ART

Maintenance base station is one of cleaning equipment commonly used in households, the main body thereof comprises a bin body having an opening and a barrel cover capable of blocking or revealing the opening, and the internal of the bin body can accommodate a bag body structure for containing waste. Generally, the barrel cover is pivotally connected to the bin body, and the barrel cover blocks or reveals the opening through the flip relative to the bin body.

In the prior art, the maintenance base station is provided with a pivoting portion and a locking portion that are oppositely arranged along the radial direction thereof, and a part of the pivoting portion is provided on a side margin of the barrel cover, while the other part of the pivoting portion is provided on a side margin of the bin body, and this part of the pivoting portion includes a pivot shaft, and the flip of the barrel cover relative to the bin body is realized by pivoting the barrel cover and the bin body through the pivoting portion. A part of the locking portion is provided on the side margin of the barrel cover, while the other part of the locking portion is provided on the side margin of the bin body; and the barrel cover and the bin body are locked with each other through the locking portion.

However, due to the complex structure of the design of the pivoting portion and the locking portion, corresponding accommodating space has to be designed in the bin body and in the barrel cover, so as to hide the corresponding complex structure in the bin wall of the maintenance base station, which inevitably causes thickening of the bin wall of the maintenance base station and results in excess overall design of the maintenance base station. For example, since the pivot shaft in the pivoting portion has a relatively great volume and the locking portion is supported by the bin wall and has to occupy necessary installation space; a double-layer design is adopted for the bin wall of the bin body of the maintenance base station; in order to accommodate corresponding pivot shaft and locking portion, wherein the space between the double-layer bin wall is used as accommodating space for achieving the purpose of accommodating structural components.

SUMMARY

An object of embodiments of the present disclosure is to provide a maintenance base station, so as to solve the technical problem existing in the prior art that maintenance base stations are complex in structure and have a thickened bin body.

In order to achieve the above object, following technical solution is adopted in the present disclosure: A maintenance base station is provided, comprising a bin body, a rotatable cover, and a revolving shaft, wherein the rotatable cover is in rotatable connection with the bin body via the revolving shaft, the bin body has a debris collection chamber and a opening in communication with the debris collection chamber, and the rotatable cover is configured for blocking or revealing the opening;

partial bin wall of the bin body adjacent to the opening is stretched towards the inner side or the outer side of the bin body, hereby forming an avoidance area, and the revolving shaft is arranged in the avoidance area, such that the revolving shaft and the bin wall are spaced apart from each other along the wall thickness direction of the bin wall, so as to accordingly limit the intervention of the revolving shaft in the wall thickness of the bin wall.

The beneficial effects of the maintenance base station provided in the present disclosure are as follows.

Compared with the prior art, as for the maintenance base station provided in the present disclosure, partial bin wall of the bin body therein adjacent to the opening is designed to be stretched towards the inner side or the outer side of the bin body, hereby accordingly forming an avoidance area, and the revolving shaft is arranged in the avoidance area. In this way, the revolving shaft is located on the outer side or the inner side of the entire wall thickness of the bin wall, and the revolving shaft and the bin wall of the avoidance area are spaced apart from each other along the wall thickness direction of the bin wall. Because of the design of the avoidance area, the revolving shaft is enabled to be also spaced apart from other parts of the bin wall of the bin body than the avoidance area. In this way, the revolving shaft is located outside the entire wall thickness of the bin wall of the bin body and has no intervention in the wall thickness design of the bin wall of the bin body, and the entire thickness of the bin wall of the bin body can be designed according to the optimization criteria of a product.

Therefore, as for the maintenance base station provided in the present disclosure, the design of the position of the revolving shaft and the design of the bin wall thickness of the bin body of the maintenance base station are enabled to be completely independent from each other, such that the dimensional designs of the two are not intervened by each other, and then the two can be respectively separately designed in an optimized way. For example, the bin wall thickness of the bin body is designed to be the thinnest, while the volume of the revolving shaft is designed to be the smallest. Solved is the problem of structural complication, caused by the design of the revolving shaft in the bin wall of the bin body as in the prior art, while the overall structure of the maintenance base station is simplified.

BRIEF DESCRIPTION OF DRAWINGS

In order to more dearly illustrate the technical solutions in the embodiments of the present disclosure, the accompanying drawings required to be used in the description of the embodiments or the prior art will be simply presented to below. Clearly, the accompanying drawings described below merely show certain embodiments of the present disclosure, and for a person ordinarily skilled in the art, other drawings could be obtained according to these accompanying drawings without using any creative efforts.

FIG. 1 is a disassembled drawing of a maintenance base station provided in an embodiment of the present disclosure;

FIG. 2 is an enlarged drawing of part A in FIG. 1 ;

FIG. 3 is a schematic drawing showing the opened state of the opening of a maintenance base station provided in an embodiment of the present disclosure;

FIG. 4 is an enlarged drawing of part B in FIG. 3 ;

FIG. 5 is a schematic drawing showing the blocked state of the opening of a maintenance base station provided in an embodiment of the present disclosure;

FIG. 6 is an enlarged drawing of part C in FIG. 5 ;

FIG. 7 is an enlarged drawing of part D in FIG. 5 ;

FIG. 8 is a schematic drawing showing the blocked state of the opening of a maintenance base station provided in an embodiment of the present disclosure;

FIG. 9 is a schematic drawing showing the opened state of the opening of a maintenance base station provided in an embodiment of the present disclosure;

FIG. 10 is an enlarged drawing of part E in FIG. 9 ; and

FIG. 11 is a schematic drawing of a revolving shaft holder provided in an embodiment of the present disclosure.

In the above; respective reference signs in the figures are as follows:

10: bin body; 20: rotatable cover; 30: revolving shaft; 40: revolving shaft holder; 101: upper bin body; 102: lower bin body; 103: debris collection chamber; 104: opening; 101 a: avoidance groove structure; 101 b: avoidance area; 101 c: groove bottom wall; 101 d: groove side wall; 101 e: upright post structure; 102 a: debris collection port; 102 b: charging contacts; 104 a: first edge; 104 b: second edge; 104 c: notch; 401: fixing hole structure; 402: first limiting portion; 403: guide groove structure; 404: protrusion structure; 403 a: sliding guide wall; 403 b: support wall; 403 c: second limiting portion; 201: cover body portion; 202: sliding guide portion; 203: connection end; 204: closed end; 2011: outer cover body; 2012: inner cover body; 2013: sealing rind; 2011 a: first abutting portion; 202 a: sliding guide surface; 202 b: second abutting portion; and 2013 a: U-shaped segment.

DETAILED DESCRIPTION OF EMBODIMENTS

In order to make the technical problems to be solved by the present disclosure, the technical solutions and beneficial effects clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that specific embodiments described here are merely used to explain the present disclosure and are not intended to define the present disclosure.

It should be clarified that when an element is described as being “fixed” or “arranged” on another element, it may be directly or indirectly fixed or arranged on the another element. When an element is described as being “in connection with” another element, it may be in direct or indirect connection with another element.

It should be understood that orientation or position relationships indicated by terms, such as “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer”, are orientation or position relationships shown based on the accompanying drawings, merely for facilitating the description of the present disclosure and for simplifying the description, rather than indicating or implying that the specified device or element must have a specific orientation, and be constructed and operated in a certain orientation, and therefore cannot be construed as limiting the present disclosure.

In addition, terms such as “first” and “second” are used merely for purpose of description, and cannot be construed as indicating or implying to have importance in relativity, or implicitly suggesting the number of the indicated technical features. Therefore, a feature defined with a term “first” or “second” can explicitly or implicitly comprise one or more of the feature. In the description of the present disclosure, the meaning of the term “multiple” indicates two or more, unless otherwise expressly defined.

The maintenance base station provided in the embodiments of the present disclosure will be illustrated now.

Referring to FIGS. 1 to 11 , a maintenance base station provided in an embodiment of the present disclosure comprises a bin body 10, a rotatable cover 20, and a revolving shaft 30, wherein the rotatable cover 20 is in rotatable connection with the bin body 10 via the revolving shaft 30, the bin body 10 has a debris collection chamber 103 and a opening 104 in communication with the debris collection chamber 103, and the rotatable cover 20 is configured for blocking or revealing the opening 104.

In the above, partial bin wall of the bin body 10 adjacent to the opening 104 is stretched towards the inner side or the outer side of the bin body 10, hereby forming an avoidance area 101 b, and the revolving shaft 30 is arranged in the avoidance area 101 b, such that the revolving shaft 30 and the bin wall are spaced apart from each other along the wall thickness direction of the bin wall, so as to accordingly limit the intervention of the revolving shaft 30 in the wall thickness of the bin wall.

Compared with the prior art, as for the maintenance base station provided in the present disclosure, partial bin wall of the bin body 10 therein adjacent to the opening 104 is designed to be stretched towards the inner side or the outer side of the bin body 10, hereby accordingly forming an avoidance area 101 b, and the revolving shaft 30 is arranged in the avoidance area 101 b. In this way, the revolving shaft 30 is located on the outer side or the inner side of the entire wall thickness of the bin wall, and the revolving shaft 30 and the bin wall of the avoidance area 101 b are spaced apart from each other along the wall thickness direction of the bin wall. Because of the design of the avoidance area 101 b, the revolving shaft 30 is enabled to be also spaced apart from other parts of the bin wall of the bin body 10 than the avoidance area 101 b. In this way, the revolving shaft 30 is located outside the entire wall thickness of the bin wall of the bin body 10 and has no intervention in the wall thickness design of the bin wall of the bin body 10, and the entire thickness of the bin wall of the bin body 10 can be designed according to the optimization criteria of a product.

Therefore, as for the maintenance base station provided in the present disclosure, the design of the position of the revolving shaft 30 and the design of the bin wall thickness of the bin body 10 of the maintenance base station are enabled to be completely independent from each other, such that the dimensional designs of the two are not intervened by each other, and then the two can be respectively separately designed in an optimized way. For example, the bin wall thickness of the bin body 10 is designed to be the thinnest, while the volume of the revolving shaft 30 is designed to be the smallest. Solved is the problem of structural complication, caused by the design of the revolving shaft 30 in the bin wall of the bin body 10 as in the prior art, while the overall structure of the maintenance base station is simplified.

Referring to FIGS. 1, 3, and 5 , in an embodiment, the bin wall of the bin body 10 is a single-layer bin wall. For example, the bin wall of the bin body 10 is composed of a single-layer structure of a rigid plastic material.

In other embodiments, the bin wall of the bin body 10 may be a layered structure having two layers or more, the revolving shaft 30 is located outside the entire layered structure of the bin body 10, and there is no intervention between the revolving shaft 30 and the layered structure of the bin body 10, that is to say, the thickness design of the whole layered structure is not affected. Of course, even if the bin wall of the bin body 10 is a layered structure having two layers or more, the entire wall thickness of the bin body 10 can still be designed as the optimum thickness of the product.

Referring to FIG. 1 , in an embodiment of the present disclosure, the bin body 10 includes an upper bin body 101 and a lower bin body 102 in connection with the lower end of the upper bin body 101, the upper bin body 101 and the lower bin body 102 are coaxial and have identical circumferential outlines, the upper end of the upper bin body 101 is provided with the opening 104, and a debris bag structure for accommodating waste can be put in or taken out of the debris collection chamber 103 of the bin body 10 through the opening 104. In the present embodiment, a debris bag holder is provided inside the debris collection chamber 103, and the debris bag structure is in detachable connection with the debris bag holder.

In the present embodiment, the lower bin body 102 is provided with charging contacts 102 b and a debris collection port 102 a, and the debris collection port 102 a is configured for aligning with a debris discharge port of a cleaning robot, so as to transfer the waste inside the cleaning robot through the debris discharge port of the cleaning robot to the debris collection port 102 a of the maintenance base station, while the charging contacts 102 b is configured for providing electric energy for the cleaning robot.

Referring to FIG. 1 , in an embodiment, partial bin wall of the bin body 10 adjacent to the opening 104 is stretched along the wall thickness direction thereof, hereby forming an avoidance groove structure 101 a, and the groove area of the avoidance groove structure 101 a includes the avoidance area 101 b. In other embodiments, partial bin wall of the bin body 10 adjacent to the opening 104 can be stretched along another direction angled with respect to the wall thickness direction thereof, hereby forming an avoidance groove structure 101 a; for example, the avoidance groove structure 101 a is stretched in an oblique direction, such that it deviates from the positive direction of the wall thickness of the bin wall.

In the present embodiment, partial bin wall of the bin body 10 adjacent to the opening 104 is stretched along the wall thickness direction thereof towards the inner side of the bin body 10, hereby forming an avoidance groove structure 101 a. Alternatively, partial bin wall of the bin body 10 adjacent to the opening 104 is stretched along the wall thickness direction thereof towards the outer side of the bin body 10, hereby forming an avoidance groove structure 101 a, In the present embodiment, it is preferred that partial bin wall of the bin body 10 adjacent to the opening 104 is stretched along the wall thickness direction thereof towards the inner side of the bin body 10, hereby forming an avoidance groove structure 101 a.

Specifically, the partial bin wall of the bin body 10 adjacent to the opening 104 is the part of the bin wall extending along the circumferential direction of the bin body 10 and constituting the edge of the opening 104, and this part of the bin wall is stretched towards the inner side of the bin body 10, hereby forming an elongated avoidance groove structure 101 a.

Referring to FIGS. 1, 4, and 6 , this avoidance groove structure 101 a has an notch opened towards the top of the bin body 10 and an notch opened towards the lateral outside of the bin body 10, and the two notches communicate with each other to constitute an integral notch. This avoidance groove structure 101 a has a groove bottom wall 101 c perpendicular to the bin wall of the bin body 10 and a groove side wall 101 d provided along the margin of the groove bottom wall 101 c. In the above, the groove bottom wall 101 c is provided with several upright post structures 101 e in a vertical state, and the each upright post structure 101 e is configured to match a fixing hole structure 401 in a revolving shaft holder 40 described below and is configured for being inserted into the fixing hole structure 401 and hereby fixing the revolving shaft holder 40 in the avoidance groove structure 101 a.

The maintenance base station further comprises a revolving shaft holder 40, the revolving shaft holder 40 is provided with a fixing hole structure 401 extending along the height direction of the bin body 10, and the upright post structure 101 e described above is inserted into the fixing hole structure 401, hereby fixedly mounting the revolving shaft holder 40 in the avoidance groove structure 101 a. Further, a screw element can be used to pass through the fixing hole and the upright post structure 101 e for further fastened connection between the two. Moreover, both shaft ends of the revolving shaft 30 are respectively inserted into the revolving shaft holder 40, and the rotatable cover 20 is in rotatable connection with revolving shaft holder 40 via revolving shaft 30.

Referring to FIG. 4 , in an embodiment of the present disclosure, the outer side of the bin wall of the bin body 10 or the side surface of the revolving shaft holder 40 adjacent to the outer side of the bin body 10 is provided with a protruding first limiting portion 402, which is located in the path of the rotatable cover 20 for rotating from the position of blocking the opening 104 towards the position of revealing the opening 104, and is configured for abutting against the rotatable cover 20 so as to limit the maximum angle at which the rotatable cover 20 opens the opening 104. The inner side of the bin wall of the bin body 10 or a region of the revolving shaft holder 40 adjacent to the inner side of the bin body 10 is provided with a second limiting portion 403 c, which is located in the path of the rotatable cover 20 for rotating from the position of revealing the opening 104 towards the position of blocking the opening 104, and is configured for abutting against the rotatable cover 20 so as to limit the rotatable cover 20 in the position of blocking the opening 104.

In an embodiment, the first limiting portion 402 and the second limiting portion 403 c are both provided on the bin wall of the bin body 10, and the first limiting portion 402 and the second limiting portion 403 c are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30; and the rotatable cover 20 has a first abutting portion 2011 a and a second abutting portion 202 b, the first abutting portion 2011 a and the second abutting portion 202 b are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30, and the first abutting portion 2011 a and the second abutting portion 202 b respectively match the first limiting portion 402 and the second limiting portion 403 c.

In an embodiment, one of the first limiting portion 402 and the second limiting portion 403 c is provided on the bin wall of the bin body 10, the other one of the first limiting portion 402 and the second limiting portion 403 c is provided on the revolving shaft holder 40, and the first limiting portion 402 and the second limiting portion 403 c are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30; and the rotatable cover 20 has a first abutting portion 2011 a and a second abutting portion 202 b, the first abutting portion 2011 a and the second abutting portion 202 b are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30, and the first abutting portion 2011 a and the second abutting portion 202 b respectively match the first limiting portion 402 and the second limiting portion 403 c, For example, the first limiting portion 402 is provided on the outer side of the bin wall of the bin body 10, preferably the top edge of the outer side of the bin wall or a structure protruding from the top edge towards the outer side of the bin wall, and the second limiting portion 403 c is provided in the region of the revolving shaft holder 40 adjacent to the inner side of the bin body 10.

Referring to FIGS. 4 and 10 , in a preferred embodiment, the first limiting portion 402 and the second limiting portion 403 c are both provided on the revolving shaft holder 40, and the first limiting portion 402 and the second limiting portion 403 c are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30; and the rotatable cover 20 has a first abutting portion 2011 a and a second abutting portion 202 b, the first abutting portion 2011 a and the second abutting portion 202 b are respectively provided on both sides of the revolving shaft 30 along the radial direction of the revolving shaft 30, and the first abutting portion 2011 a and the second abutting portion 202 b respectively match the first limiting portion 402 and the second limiting portion 403 c.

Specifically, referring to FIGS. 8 and 11 , the rotatable cover 20 includes a cover body portion 201 and a sliding guide portion 202 in connection with the cover body portion 201, the cover body portion 201 is configured for blocking or revealing the opening 104, and the first abutting portion 2011 a is provided on the cover body portion 201. The sliding guide portion 202 is provided with a sliding guide surface 202 a, and the second abutting portion 202 b is provided on the sliding guide surface 202 a in a protruding manner. The revolving shaft holder 40 is provided with a guide groove structure 403, and the groove wall of the guide groove structure 403 includes a sliding guide wall 403 a and two support walls 403 b oppositely arranged on both sides of the sliding guide wall 403 a; both shaft ends of the revolving shaft 30 are respectively inserted into the two support walls 403 b, and the sliding guide portion 202 is in rotatable connection with the revolving shaft holder 40 via the revolving shaft 30; and both the sliding guide surface 202 a and the sliding guide wall 403 a take the revolving shaft 30 as center of rotation, and the second limiting portion 403 c is concavely arranged on the sliding guide wall 403 a.

More specifically; the upper surface of the revolving shaft holder 40 is provided with at least one pair of protrusion structures 404; which protrudes from the upper surface; the above mentioned guide groove structure 403 is formed through the inward depression of the upper surface; the two opposite side surfaces and two support walls 403 b of this pair of protrusion structures 404 are respectively in corresponding connection with each other; and both shaft ends of the revolving shaft 30 are respectively inserted into the two opposite side surfaces of this pair of protrusion structures 404.

When the rotatable cover 20 rotates relative to the bin body 10, the sliding guide portion 202 rotates relative to the guide groove structure 403, and the sliding guide surface 202 a matches the sliding guide wall 403 a and rotates relative to the sliding guide wall 403 a. At this moment, the second abutting portion 202 b provided on the sliding guide surface 202 a can move close to or away from the second limiting portion 403 c provided on the sliding guide wall 403 a along the rotation direction, and accordingly abuts against the second limiting portion 403 c or departs from the second limiting portion 403 c. When the second abutting portion 202 b abuts against the second limiting portion 403 c, the rotatable cover 20 just blocks the opening 104; and when the second abutting portion 202 b departs from the second limiting portion 403 c along the opposite direction, the rotatable cover 20 just begins to rotate from the position of blocking the opening 104 towards the position of revealing the opening 104. When the first abutting portion 2011 a on the rotatable cover 20 abuts against the first limiting portion 402 on the revolving shaft holder 40, the rotatable cover 20 is just located at the maximum angle for opening the opening 104; and when the first abutting portion 2011 a departs from the first limiting portion 402 along the opposite direction, the rotatable cover 20 just begins to rotate from the maximum angle for revealing the opening 104 towards the position of blocking the opening 104.

In the above, referring to FIG. 8 , the cover body portion 201 includes an outer cover body 2011 and an inner cover body 2012, and the outer cover body 2011 and the inner cover body 2012 are joint together along the thickness direction of the cover body portion 201 and constitute the entity of the cover body portion 201. In the above, the side surface of the outer cover body 2011 away from the inner cover body 2012 is the cover body outer side surface, while the side surface of the inner cover body 2012 away from the outer cover body 2011 is the cover body inner side surface, and the cover body outer side surface and the cover body inner side surface are arranged oppositely along the thickness direction of the cover body portion 201.

The cover body portion 201 further has an connection end 203 and a dosed end 204 that are arranged oppositely along the radial direction thereof, and the connection end 203 is in rotatable connection with bin body 10 via the revolving shaft 30. In the above, the edge of the outer cover body 2011 located at the connection end 203 includes the first abutting portion 2011 a mentioned above for abutting against the first limiting portion 402 on the revolving shaft holder 40, so as to limit the maximum angle of the rotatable cover 20 for opening the opening 104. In the above, when the cover body portion 201 is located at the maximum angle for opening the opening 104, the cover body portion 201 is approximately perpendicular to the opening 104, or the included angle between the cover body portion 201 and the holder of the opening 104 is approximately 90 degrees.

In an embodiment of the present disclosure, along the direction from the connection end 203 of the cover body portion 201 towards the dosed end 204, the center of gravity of the cover body portion 201 moves dose to the dosed end 204 and away from the connection end 203. In this way, the cover body portion 201 can be driven by utilizing the dead weight of the cover body portion 201, so as to automatically flip from the position of revealing the opening 104 towards the position of blocking the opening 104. Thus, in the embodiment of the present disclosure, the design of a locking portion at the dosed end 204 can be cancelled. In the case of canceling the locking portion, relying on the eccentric force produced by center-of-gravity shift, the cover body portion 201 can automatically block the opening 104, hereby achieving a relatively good blocking effect.

In the present embodiment, following mode for realizing the design of the center-of-gravity shift as mentioned above is utilized; In a situation where the entire material of the cover body portion 201 is consistent, the cover body inner side surface moves away from the cover body outer side surface gradually along the direction from the connection end 203 towards the closed end 204. That is to say, along the direction from the connection end 203 towards the closed end 204, the thickness of the cover body portion 201 is gradually increased, and the weight of the cover body portion 201 is gradually increased, thereby realizing the center-of-gravity shift.

Further, in the present embodiment, when the cover body portion 201 is located at the position of blocking the opening 104, the cover body outer side surface is arranged horizontally, while the cover body inner side surface is arranged obliquely; and correspondingly, since the opening 104 and the cover body inner side surface match each other, the opening 104 is arranged obliquely as a whole.

Of course, in the present embodiment, when the cover body portion 201 is located at the position of blocking the opening 104, the cover body outer side surface is arranged obliquely, while the cover body inner side surface is arranged horizontally; and correspondingly, since the opening 104 and the cover body inner side surface match each other, the opening 104 is arranged horizontally as a whole, Compared with the solution in the above paragraph, since the cover body outer side surface is arranged obliquely, when the cover body portion 201 is located at the position of revealing the opening 104, the offset weight of the cover body outer side surface can weaken the driving force for the rotation of the cover body portion 201 towards the position of blocking the opening 104, Thus, it is preferred that the cover body outer side surface is arranged horizontally, while the cover body inner side surface is arranged obliquely.

In other embodiments, the same purpose can be achieved by adding a counterweight structure to the dosed end 204 or using materials with different weights to generate a gravity difference between the connection end 203 and the dosed end 204.

In an embodiment, the opening 104 mentioned above has a first edge 104 a and a second edge 104 b arranged oppositely to the first edge 104 a, a notch 104 c is provided in the extension of the first edge 104 a towards the direction being dose to or departing from the second edge 104 b, and it could be understood as a part opened towards a side edge of the bin body 10 included by the slot of the above avoidance groove structure 101 a, the bin body 10 is provided with an avoidance groove structure 101 a extending from the notch 104 c, and the groove area of the avoidance groove structure 101 a includes an avoidance area 101 b.

Preferably, the notch 104 c is provided in the extension of the first edge 104 a towards the direction being dose to the second edge 104 b, a sealing ring 2013 is provided on the side of the rotatable cover 20 close to the opening 104, and the sealing ring 2013 encloses the circumference side of the rotatable cover 20. In the present embodiment, it specifically encloses the inner cover body and is dose to the cover body inner side of the inner cover body, and the inner cover body is exposed from the cover body inner side. The sealing ring 2013 cooperates with the edge of the opening 104, and the sealing ring 2013 is provided with a Li-shaped segment 2013 a which is in location fit with the notch 104 c, in order to realize the peripheral seal of the part of the avoidance groove structure 101 a.

In an embodiment of the present disclosure, the maintenance base station is configured for cooperation with a cleaning robot. The above-mentioned maintenance base station may be a recycling maintenance base station, which is configured for recycling maintenance of waste stored by a cleaning robot, such as debris collection barrel; or a cleaning base station, which is configured for cleaning maintenance of mopping parts or cleaning parts of the cleaning robot; or may also be a maintenance base station that integrates multiple functions such as debris collection maintenance and cleaning maintenance.

The above mentioned is merely preferred embodiments of the present disclosure, and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present disclosure shall all be covered in the scope of protection of the present disclosure. 

1. A maintenance base station, applicable for cooperation with a cleaning robot, comprising a bin body, a rotatable cover, and a revolving shaft, wherein the rotatable cover is in rotatable connection with the bin body via the revolving shaft, the bin body has a debris collection chamber and an opening in communication with the debris collection chamber, and the rotatable cover is configured for blocking or revealing the opening; and partial bin wall of the bin body adjacent to the opening is stretched towards an inner side or an outer side of the bin body, hereby forming an avoidance area, and the revolving shaft is arranged in the avoidance area, such that the revolving shaft and the bin wall are spaced apart from each other, so as to accordingly limit an intervention of the revolving shaft in a wall thickness of the bin wall.
 2. The maintenance base station according to claim 1, wherein the bin wall of the bin body is a single-layer bin wall.
 3. The maintenance base station according to claim 1, wherein the partial bin wall of the bin body adjacent to the opening is stretched along a wall thickness direction thereof, hereby forming an avoidance groove structure, and a groove area of the avoidance groove structure comprises the avoidance area; and the maintenance base station further comprises a revolving shaft holder, which is arranged in the avoidance groove structure; and both shaft ends of the revolving shaft are respectively inserted into the revolving shaft holder, and the rotatable cover is in rotatable connection with the revolving shaft holder via the revolving shaft.
 4. The maintenance base station according to claim 3, wherein the partial bin wall of the bin body adjacent to the opening is stretched along the wall thickness direction thereof towards the inner side of the bin body, hereby forming the avoidance groove structure.
 5. The maintenance base station according to claim 3, wherein an outer side of the bin wall of the bin body or a side surface of the revolving shaft holder adjacent to the outer side of the bin body is provided with a protruding first limiting portion, which is located in a path of the rotatable cover for rotating from a position of blocking the opening towards a position of revealing the opening, and is configured for abutting against the rotatable cover so as to limit a maximum angle at which the rotatable cover opens the opening.
 6. The maintenance base station according to claim 5, wherein an inner side of the bin wall of the bin body or a region of the revolving shaft holder adjacent to the inner side of the bin body is provided with a second limiting portion, which is located in a path of the rotatable cover for rotating from the position of revealing the opening towards the position of blocking the opening, and is configured for abutting against the rotatable cover so as to limit the rotatable cover in the position of blocking the opening.
 7. The maintenance base station according to claim 1, wherein the rotatable cover has an connection end and a closed end that are arranged oppositely along a radial direction thereof, and the connection end is in rotatable connection with the bin body via the revolving shaft; and a center of gravity of the rotatable cover is close to the closed end and is away from the connection end.
 8. The maintenance base station according to claim 7, wherein the rotatable cover has a cover body outer side surface and a cover body inner side surface that are arranged oppositely along a thickness direction thereof; and the cover body inner side surface gradually keeps a greater distance with the cover body outer side surface along a direction from the connection end towards the dosed end.
 9. The maintenance base station according to claim 1; wherein the opening has a first edge and a second edge arranged oppositely to the first edge, a notch is provided in an extension of the first edge towards a direction being close to or departing from the second edge, the bin body is provided with an avoidance groove structure extending from the notch, and a groove area of the avoidance groove structure comprises the avoidance area.
 10. The maintenance base station according to claim 9, wherein the notch is provided in the extension of the first edge towards the direction being close to the second edge, a sealing ring is provided on a side of the rotatable cover close to the opening, the sealing ring encloses a circumference side of the rotatable cover, the sealing ring cooperates with an edge of the opening, and the sealing ring is provided with a U-shaped segment which is in location fit with the notch.
 11. The maintenance base station according to claim 2, wherein the partial bin wall of the bin body adjacent to the opening is stretched along a wall thickness direction thereof, hereby forming an avoidance groove structure, and a groove area of the avoidance groove structure comprises the avoidance area; and the maintenance base station further comprises a revolving shaft holder, which is arranged in the avoidance groove structure; and both shaft ends of the revolving shaft are respectively inserted into the revolving shaft holder, and the rotatable cover is in rotatable connection with the revolving shaft holder via the revolving shaft.
 12. The maintenance base station according to claim 2, wherein the rotatable cover has an connection end and a dosed end that are arranged oppositely along a radial direction thereof, and the connection end is in rotatable connection with the bin body via the revolving shaft; and a center of gravity of the rotatable cover is dose to the closed end and is away from the connection end.
 13. The maintenance base station according to claim 2, wherein the opening has a first edge and a second edge arranged oppositely to the first edge, a notch is provided in an extension of the first edge towards a direction being close to or departing from the second edge, the bin body is provided with an avoidance groove structure extending from the notch, and a groove area of the avoidance groove structure comprises the avoidance area.
 14. The maintenance base station according to claim 1, wherein a bin wall of the bin body is in a layered structure having two layers or more.
 15. The maintenance base station according to claim 3, wherein the avoidance groove structure has an notch opened towards a top of the bin body and an notch opened towards a lateral outside of the bin body, and the two notches communicate with each other to constitute an integral notch.
 16. The maintenance base station according to claim 3, wherein the avoidance groove structure has a groove bottom wall, wherein the groove bottom wall is provided with upright post structures in a vertical state, and the each upright post structure is configured to match a fixing hole structure in a revolving shaft holder and is configured for being inserted into the fixing hole structure and hereby fixing the revolving shaft holder in the avoidance groove structure.
 17. The maintenance base station according to claim 1, wherein the rotatable cover includes a cover body portion and a sliding guide portion in connection with the cover body portion, the cover body portion is configured for blocking or revealing the opening, the sliding guide portion is provided with a sliding guide surface, the revolving shaft holder is provided with a guide groove structure, and the groove wall of the guide groove structure includes a sliding guide wall; when the rotatable cover rotates relative to the bin body, the sliding guide portion rotates relative the a guide groove structure, and the sliding guide surface matches the sliding guide wall and rotates relative to the sliding guide wall.
 18. The maintenance base station according to claim 1, wherein a cover body portion comprises an outer cover body and an inner cover body, and the outer cover body and the inner cover body are joint together along a thickness direction of the cover body portion and constitute an entity of the cover body portion, wherein a side surface of the outer cover body away from the inner cover body is a cover body outer side surface, while a side surface of the inner cover body away from the outer cover body is a cover body inner side surface.
 19. The maintenance base station according to claim 18, wherein when the cover body portion is located at a position of blocking the opening, the cover body outer side surface is arranged horizontally, while the cover body inner side surface is arranged obliquely, and correspondingly, the opening is arranged obliquely. 